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Computer Controlled Eyes for Human Patient Simulator. Group 8 Advisor : Ray Booker. Silviu Diaconu Emad Elsamadicy Anas Othman Azreena Ahmad Shukri. Problem Statement.
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Computer Controlled Eyes for Human Patient Simulator Group 8 Advisor : Ray Booker Silviu Diaconu Emad Elsamadicy Anas Othman Azreena Ahmad Shukri
Problem Statement • Trauma care physicians rely on realistic medical simulators to expose them to life-threatening situations before treating on real patients • ED physicians express concern that current human patient simulators inadequately simulate physiological responses of the eyes. • Problem: How to design a cost-effective realistic eye simulator that can implement a broad range of anatomical capabilities ?
Performance Criteria 1. Size: • Needs to fit SimMan’s eye sockets 2. Control/Response-Time : • Must be externally controlled • Should have minimal delay when reactingto user input 3. Functionality: • Must perform basic eye function • Movement (Full range) • Pupil dilation/constriction (1 - 10 mm) • Speed • Pink eye/ Redness (intensity) • Blinking (Eyelids)- Reaction
Current eye simulators • $300 ~ $2000 • Limited functions • Movement • Blinking Mechanical Eyes Standalone Eye Simulator • $1100 (golimbs.com) • Fundoscopic Exams using slides • Separated from SimMan
Our Solution Proposal Using microdisplay technology we can implement 3D-graphics to model anatomical eye features and specific physiological responses required.
Goals & Factors • Develop a cost-effective computer-controlled eye simulator that is esthetically pleasing and realistic • Using micro-displays lowers both cost and maintenance than current eye simulators • 3D graphics offers an effective method that can increase both the quality and number of various physiological response necessary for a realistic medial scenario.
Experimental Setup 3D Studio Max Lilliput 1.8” screen 3D Graphic/Animation Engine 3D Object Controls Symmetrical Video Feed Video Output VGA to Component Adapter Mapped Keyboard Hardware Software
3D Studio Max & DX Studio • 3D Studio Max • Create 3D Model • Eyeball & Eyelids • Problems • Rendering delay • Motion capture control • DX Studio • Allows for direct control over animated objects • Demo
Hardware : LCD Screen • Lilliput 212GL-18NP • 1.8”, 4:3 TFT LCD • LCD size : 1.7” x 2” • Circuit Board size : 3” x 2” • Resolution : 116,160 (dots) • Video Input : Composite • Power supply: 8V • $59.99 (eio.com) • Limitations • FFC Cable • Circuit Board Size (Extra functions) • Heat generation from Backlight
Plan for LCD Fitting in SimMan Head TOP VIEW • Dimensions: • Limited space • Tools & Materials: • 4-Flue Double-End End Mill • 8 mm Mill Diameter • ¾’’ Length of Cut • 3/8’’ Shank Diameter • Clamp • Aluminum Alloy Plate • ¼’’ Thick • 6” Width • 1’ Length A B A = 4.1” B = 0.8” 1.7” 1.5” FRONT VIEW
Current Work Enhancing pupil dilation/constriction and eye redness texture Import blinking motion into DX Studio. Finding best way to fit LCD screen into SimMan head Meeting Ronald Reisner to to begin cutting SimMan’s head.
Future Work Improve animation quality in order to increase realism Present completed animations to Ray Booker this Friday Test eye functionality by using real-time simulation Survey physicians to validate performance.